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نمایش تعداد 1-10 از 75
Different cyclic motifs in phosphoric triamides containing a C(O)NHP(O)(NH)2 skeleton and an R22(10) graph set in three new compounds: a database analysis of hydrogen-bond strengths based on motifs
structures deposited in the Cambridge Structural Database and with the International Union of Crystallography, with the aim of comparing hydrogen-bond strengths in the above-mentioned cyclic motifs. This analysis shows that the strongest N—H…O hydrogen bonds...
Spectroscopic and Structural Studies of Some New C(O)NHP(O) Containing Phosphorictriamides
Spectroscopic and Structural Studies of Some New C(O)NHP(O) Containing Phosphorictriamides
A. Saneei *, M. Pourayoubi
Department of Chemistry, Ferdowsi University of Mashhad, Mashhad, 91779 Iran
(e-mail: ...
2JPNH and 3JPNH Coupling Constants, Crystallography and NMR Considerations
2JPNH and 3JPNH Coupling Constants, Crystallography and NMR Considerations...
Synthesis and Crystal structure of a New N-(2,6-dichlorobenzoyl)-N\\',N\\',N\\",N\\"-tetra(ethyl)-Phosphoric triamide
Synthesis and Crystal structure of a New N-(2,6-dichlorobenzoyl)-N\\',N\\',N\\",N\\"-tetra(ethyl)-Phosphoric triamide
Maryam Toghraee*, Mehrdad Pourayoubi
Department of Chemistry, Ferdowsi University of ...
Two new XP(O)[NHC(CH3)3]2 phosphoramidates, with X = (CH3)2N and [(CH3)3CNH]2P(O)(O). Corrigendum
The chemical name of one of the title compounds in the paper by Pourayoubi et al. [Acta Cryst. (2012), C68, o164–o169] is corrected.
Synthesis and Crystal Structure of Tris(L-iso-leucinium(2S,3S))-dodecatungstophosphate 4.5 hydrate
The asymmetric unit of the title salt contains two symmetrically independent [PW12O40]3– polyoxoanions, six L-isoleucinium (2S,3S) cations and nine solvent water molecules. The anion shows a classical a-Keggin structure, ...
Effect of aluminum on stability of retaine austenite in bainitic malleable cast iron
The presence of well distributed graphite in the matrix, and a relatively high volume fraction of retained austenite, are responsible for the good mechanical properties of the austempered ductile irons including excellent ...
Synthesis, Spectroscopic Study and Crystal Structure of a New Single-Enantiomer C(O)NHP(O)-Based Phosphoric Triamide, CCl3C(O)NHP(O)[(R)-(+)-NHCH(CH3)(C6H5)]2, 0.25 H2O
The crystal structure of CCl3C(O)NHP(O)[(R)-(+)-NHCH(CH3)(C6H5)]2, 0.25 H2O has been determined; it belongs to the chiral space group P1. In all four phosphoric triamide molecules of the asymmetric unit, the P atom has a ...
The X-ray Transform and its Application in Nano- Crystallography
In this article a review on the definition of the X- ray transform and some of
its applications in Nano crystallography is presented. We shall show that the X- ray
transform is a special case of the Radon transform on homogeneous...
SYNTHESIS, SPECTROSCOPIC CHARACTERIZATION, CRYSTAL STRUCTURE AND HIRSHFELD SURFACE ANALYSIS OF (4-Cl-C6H4O)(OC4H8N)2PO AMIDOPHOSPHOESTER
A new amidophosphoester, (4-Cl-C6H4O)(OC4H8N)2PO, was synthesized and characterized by spectroscopic methods (IR, 31P-, 13C-, 1H-NMR) and single-crystal X-ray diffraction. The crystal belongs to the space group P21/c, and ...